Incest-in-law

To fuck one's brother-in law or sister-in-law.

Ed: "Wait, Jack fucked his wife Jill's sister?"
Eddie: "Yeah he just committed incest-in-law."

by The Elias June 02, 2016

cherry incest

A perfume with the scent of incest with a hint of cherry. Perfect to spray around a family cookout.

“Good golly! Cheryl , is that cherry incest you’re wearing?”
“Why yes it is, Karen. I bought it from JC Penny”
“mmm the sweet smell of cousin fuckin’ under the cherry tree”

by cherry tree Betty June 14, 2019

Incest Jar

An Incest Jar is a jar filled with family to family, generation to generation sperm, which is a big jar, usually carried with a rope, tied to a truck for transportation. It’s usually used for a torture method against family members apart of the cult named, “Peppa pig’s affairs”

Jane got put into the incest jar, therefore she’s in the “Peppa Pig’s Affairs cult”.

by Gayxoxo July 06, 2022

Incest expert

Synonym: Pornstar

Person 1: Whoa.. why is he so in love with his cousins?
Person 2: That’s just Pornstar, he’s an incest expert, straight from Alabama.

by Python3 July 28, 2019

program incest

Having intimate relations with someone within your college or university program. Often risking a break up and hardships throughout the rest of your post-secondary experience, generally frowned upon especially in smaller program sizes.

Joe: Hey, that girl in our lecture is hot AF.
Greg: No that'd be program incest, you know you never do that.

by bean george May 27, 2021

soft incest

Relations with a family member who shares no blood relation, e.g. related by marriage or adoption.

She engaged in some soft incest with her former stepbrother.

by jharrison3452 October 31, 2015

incest belt

The group of southern states reaching from Texas to Georgia.

My cousins are from The Incest Belt, so you know they're sleeping with each other.

by ap3419 November 30, 2013